How do hydraulic lifters work in an Acura CL 3.0?

Hydraulic lifters in an Acura CL 3.0 function by using oil pressure to maintain zero valve clearance, allowing for smooth operation of the engine's valvetrain. When the engine runs, oil is pumped into the lifter, causing it to expand and push against the pushrod, which in turn opens the valve. This self-adjusting feature helps eliminate the need for manual adjustments and reduces engine noise. If the oil pressure is low or the lifters become dirty, they may fail to operate correctly, leading to ticking noises or poor engine performance.